In 2026, you can absolutely wear a fanny pack (or "waist bag") on a plane, but how it is treated by airline staff depends heavily on the carrier's specific baggage policy. Most full-service airlines like Delta or United allow a "personal item" and a "carry-on"; if your fanny pack is small, they often ignore it, letting you wear it through the gate. However, ultra-low-cost carriers (ULCCs) like Spirit, Frontier, or Ryanair are notoriously strict; they may count the fanny pack as your one permitted "personal item." If you are already carrying a backpack, they might ask you to tuck the fanny pack inside the larger bag before boarding. It is a peer-to-peer "pro-tip" to keep your most essential items—passport, boarding pass, phone, and medications—in the fanny pack so they are easily accessible during security and while seated. Just remember that during takeoff and landing, flight attendants will likely ask you to stow the pack under the seat in front of you or in the overhead bin if it interferes with your seatbelt or exit access.